Personal details

Helena W. - Remote data analyst

Helena W.

Based in: 🇺🇸 United States
Timezone: Eastern Time (US & Canada) (UTC-4)

About

I am an ex-Coinbase data analyst and growth marketing manager with deep experience building growth loops and models for both startups and public companies based on product/customer data.

I also have led growth marketing at Teal and Examine.com and have grown revenue by debugging AARRR funnels, bridging both technical and qualitative aspects of marketing analytics and strategy. The startup world has always been a fun and exciting stage for me, and I hope to find ambitious founders to consult for and help them overcome their product and marketing blockers to reach the next stage of profitable growth.

With expertise in SQL, JavaScript, Python, and more, and comfort setting up Meta pixels and conversion API, I act as a single expert deploying code, analyzing funnels, and building data reports and post-mortems for marketing campaigns.

Work Experience

Freelance Data and Marketing Consultant
Pietra Studio | Jul 2023 - Present
HTML/CSS
SQL
Mixpanel
JavaScript
Webflow
HubSpot
Conversion Rate Optimization

● Lowered paid CAC by 35% and achieved 60x ROAS on paid ad spend by analyzing full marketing funnel metrics,
implementing Mixpanel tracking, and deduplicating Facebook events.
● Recommended onboarding revisions based on user behavior analysis, leading to 5% increase in activation.
● Improved ROI on influencer marketing campaigns by 20% via value proposition and metrics analysis.

Data Analyst, Marketing and Product
Walmart | Apr 2023 - Present
Python
SQL
Google BigQuery
Google Cloud Platform
Apache Spark
Looker
Adobe Analytics
Jira/confluence

● Boosted GMV from customers from a key strategic partnership by 40% over 3 months via proactive order insights.
● Actively engaged in sprint planning meetings with data analytics and data Engineering for B2B feature launches.
● Prepared and delivered SQL-generated reports and post-launch analyses to senior leadership and Marketing teams.
● Validated and performed quality assurance on complex databases with SQL to test new data instrumentation.

Education

Duke University School of Medicine
Master's degreeClinical Informatics
Aug 2020 - Aug 2021
Duke University
Bachelor's degreeBiology
Aug 2016 - May 2020

Certifications & Awards

Lean Six Sigma Green Belt